Lamp-hanger.



No. 700,507), l l Patented'nay 20, |902.

T. LINDSAY 0 L. L, wHne.

LAMP HANGER.

(Application tiled Sept. 5, 1901.)

(No Model.)

0 l [NVE/vrom UNr'rJED( {SrArns PATENT OFFICE. e

THOMAS LINDSAY AND LEONARD L.l WHITE, or WILMERDING, PENN- lsvLvANIA.

LAMP-HANGER.

SPECIFICATION forming vpart of Letters Patent No. '7O,517, dated May20,1902. Applioationfiled September 5, 1901. Serial No. 74,431. (Nomodel.) v

T0 @ZZ whom it may concern:

Be it known that we, THoM-AsLINDsAY and LEoNARDlL. WHIrE,--citizens ofthe 'United' States, residing at Wilmerding, in the county of Allegheny,State of'lennsylvania, have in-` vented certain new and usefulImprovements in Lamp-Hangers, of which the lfollowing is aspecification, reference being had therein to" the accompanyingdrawings'.

This invention relates to `lamp-hangers, and@- particularly to aconstruction embodying a spring-drum adapted to have wound thereon thesuspending device or cord for the lamp.

. The invention has for its object to provide means independent from thedrum for guiding the winding of the supporting cord or device upon thedrum in order to prevent the overlapping or entanglement thereof-in theraising or lowering movement of the lamp supported by the hanger.

A further object of the invention is to provide a spring-actuated guideadapted to move transversely to the face of the drum in order to place aconstant tension against the cord-. as the same is wound uponthedrumlface,

causing the winding in a continuous? spiral line and avoids thenecessity of any grooving of the face of the drum.

A further object of the invention is to profA` vide an improvedmeansforl supportingithe Winding-spring Within the body of thev drum.

\ Other objects and advantages of the inven-V tion will hereinafterappear inthe following description, and the novel featuresthereof willbeparticularly pointed lout in the appended claims. i

In the drawings, Figure 1 represents a perspective of the invention withthe inclosing" case removed. Fig. 2 is an end elevationV ing-wires formthe supporting cordvor medium.

- The invention is further intended as an improvement upon Patent No.669,283 of March` 5,1901, granted to! Thomas Lindsay, and is Aandvexpensive construction of grooved drum by substituting therefor adrnmhaving au smooth periphery and an'improvedy form of guiding devicewhich is'entirely independent ofthe movement of the drum.

g In the' drawings, the letterA represents a frame, which may be of anysuitable' configuration and in the complete article is adapted to beinclosed in a casing. The opposite side members A of the frame aresecured together by cross-bars A2 at their upper` and lower portions,while between these bars a spindle or axle A3 is held against rotationby the frame in any suitable manner-for instance, by means ofv a pin A5,passed through opposite lugs A4, formed on the side bars A', and

through an aperture in the end of the axle.

Upon-this axle a drum B is rotatably mountedv and visprovided with acontinuous plain periphery upon which the supporting.. device for thelamp-is adapted to f be wound. In order to guide and dispose thissupporting Vcord orf device -toathe ,center of the drum,` -th'e` ends ofthe side bars A are provided -withrollers A6, rotatably supported uponpins '-Ai, connectingvthe side jbars A', so` that the ,cordinapproaching the drum is directed to `a centralposition lengthwiseof thedrum. Itwillibe understood that one end of this -'cordjor suspendingdevice is connected to a fxed support,while the opposite end sup- 'portsthe lamp or device to be carried by the hanger, and the cord C ispreferably a continuous piece andis passed through the drum in a linefrom one side to the diametrically opposite side, openings or aperturesB being provided for this purpose atgthe edges,so that the windingmovementzis'fromrthe outenedge of the drum inward upon both endsof thecord. j 1:' 'v 1 2 v In the winding of the cordit is desirable that eachstrand or winding should lie in-close contact with the preceding andadjacent one, so as to produce a continuous spiral winding IOO 55adapted to'dispense with the more difficult to prevent the entanglementof the cords or the ovcrlappingof the same and to economize in thelength or capacity of the drum necessary for any particular length ofcords. The improved construction ot' guide for exerting a pressure uponthe cord transversely of its length and of the drum B consists of thefinger D, which may be segmental or of any other preferredconfiguration, and is slidably mounted by a collar D upon the crossbarA2 at each side of the drum, while surrounding this bar a spiral springDL is disposed in order to normally press the guide toward one end ofthe bar, while the accumulation of the cord woundY upon the drumgradually forces the guide against the tension of the spring, thusproducing the desired pressure to force each strand or Winding of thecord into contact with the adjacent one. This produces a structureentirely independent of the drum and obviates the necessity of thespiral grooving on the drum, which has not been found desirable in theuse of a sheet-metal drum as herein illustrated. i

By reference to Fig. l it will be seen that the guides D move inopposite directions upon the two windings upon the drum in order thatthe strands of each Winding may be pressed toward the edges 'of thedrum.

In order to provide a construction of winding-spring which will notinterfere With the suspending cord or device or injure the insulationthereof when the electric conductor is used, a spider E is provided andsupported Within the drum in any desired manner-for instance, by screwsE passing through the drum. The spring E2 is secured at one end to thelip or lug E, carried by the spider and at its opposite end to the fixedaxle or spindle .A3 ofthe drum, so that theunwiudingof the cord from thedrum rotates the end of the spring carried bythe cage to place thespring under tension, and thus restore the parts to their initialposition when relieved of the Weight of the lamp. The tension of thisspring is varied or determined according to the Weight of the lamp orother device supported by the hanger.

From the foregoing description the operation of the invention Will beapparent, and it will be seen that in the beginning of the windingaction upon the drum the cord' eX- teuds from the aperture B to theguide-rollers opposite the center of the drum, while the sliding guide Dpresses against the cord during the Winding movement, thus causing thesame to be disposed in a spiral position with the strands in closecontact with each other. In the unwinding movement of the cord the guideD follows the cord by means of the spiral spring D2, so that this guideis constantly in engagement with one side of the strand or cord tocontrol and guide the Winding action of the same.

It will be obvious that changes may be made in tho details ofconstruction and configuration Without departing from the spirit of theinvention as defined by the appended claims.

Having described the invention, what is claimed isl. In a lamp-hanger,the combination with a spring-actuated drum, of a supporting-cordadapted to be wound thereon, a guide-finger independent from the drumand adapted to move longitudinally thereof, in contact with the cordwound thereon, and means independent of the drum for imparting yieldingpressure ofthe guide-finger against the cord-Windings; substantially asspecified.

2. In a lamp-hanger, the combination with a spring-actuated drum, of asupporting-cord adapted to be Wound thereon, a guide-finger independentfrom the drum and adapted to move longitudinally thereof, and a springfor normally forcing said guide toward one edge of said drum;substantially as specified.

3. A lamp-hanger comprising a frame, a spring-actuated drum `rotatablymounted therein, a supporting-cord Wound upon said drum, a cross-bar atone side of said drum, a guiding-iinger adapted to contact with saidcord and slidably mounted upon said crossbar, and a spring for pressingsaid finger in one direction; substantially as specified.

4E. A lamp-hanger comprising a frame, a spring actuated drum rotatablymounted therein, a supportingcord Wound upon said drum, a cross-bar atone side of said drum, a guiding-linger adapted to contact with said`cord and slidably mounted upon said crossbar, a spring for pressingsaid nger in one direction, an opposite guide-finger upon the oppositeside of drum, and a spring for pressing said opposite finger in thedirection opposite to that of the first-mentioned nger; substantially asspecified.

5. A lamp-hanger comprising a frame, a spring actuated drum rotatablymounted therein, a supporting-cord Wound upon said drum, a cross-bar atone side of said drum, a guiding-finger adapted to contact with saidcord and slidably mounted upon said crossbar, a spring for pressing saidfinger in one direction, an opposite corresponding guidenger upon theopposite side of the drum, a spring for pressing said opposite finger inthe direction opposite to that of the first-mentioned finger, andguide-rollers supported by the frame adjacent to the longitudinal centerof said drum; substantially as specified.

6. In a lamp-hanger, the combination with a supportingdrum, a cordadapted to bc Wound thereon and passed therethrough, of a spider havingarms adapted to be removably secured to said drum and carrying the outerend of the actuatingspring for the drum at a distance from the innerface thereof,a spindle for said drum to which the opposite end of saidspring is secured, and means for securing said spindle against rotation;substantially as specified.

7. In a lamp-hanger, the combination with IOO IIC

specified.

a supporting-drum and cord adapted to be Wound thereon,of a spider having arms adapted to be secured to said drum and carrying one end of theactuatingspring for the drum at a distance from the inner face thereof,a spindle for said drum to which, the opposite end ofsaid spring issecured, a frame for said gers lidably mounted u pon said cross-bars,and

a coiled spring surrounding said cross-bars and adapted to forcesaidlingers toward the opposite ends of the drinn; substantially as 9. Alamp-hanger comprising al:'raine, a

.spring-actuated drum centrally ymounted therein, cross-bars at oppositesides of lsaid drum, a supporting-cord'extending from the opposite edgeportions of saiddrum, guidefingers sli dably inountedupon saidcrossfbars,

a coiled spring surrounding said cross-bars and adapted to forcesaidngers toward the opposite ends of the drum, and'oppositelydisposedguide-rollers carried by` said frame at each side of 'said drum and atthe longitudinal center thereof; substantially as specified.

In testimony whereof we affix our signatures in presence of twowitnesses. x

THoMAs LINDSAY. i LEONARD L. WHITE.

Witnesses: l J. M. PoLLoCK, l ALBERT R. TREVAsKIs.

